Grapes are getting closer to picking time!

Blanc Dubois above is getting close to picking time.  Turning yellow and starting to taste sweet.
brix=16, ph=3.01.  I’m hoping brix gets to 21 and ph needs to get to 3.4

Lomanto above will be ready first most likely.  Ph is on the rise.
brix=15, ph=3.24.  Need the ph and brix to both rise.

Black Spanish above is still good ways off.  Some berries are still green and I think I over loaded the vines taking longer to ripen this year.
brix=13, ph=2.9.  Need to ph and brix to both rise a lot here.

Two formulas to help determine if the grapes are ready:
Brix x ph x ph = (220-260 is the idea range)
Brix/TA( in g/100mL) = 30 – 32

Taste is the real way.  As the ph raises, the Tartaric Acid drops and the grapes will taste sweeter.  Each week I taste lots of grapes learning when to know they are ready to pick.